Toyota
Dodge Durango
 Service Manual
Transmission and Transfer Case » Description and operation
Overdrive off switch

DESCRIPTION

The overdrive OFF (control) switch is located in the shift lever arm.

OPERATION

The switch is a momentary contact device that signals the PCM to toggle current status of the overdrive function. At key-on, overdrive operation is allowed. Pressing the switch once causes the overdrive OFF mode to be entered and the overdrive OFF switch lamp to be illuminated. Pressing the switch a second time causes normal overdrive operation to be restored and the overdrive lamp to be turned off. The overdrive OFF mode defaults to ON after the ignition switch is cycled OFF and ON. The normal position for the control switch is the ON position. The switch must be in this position to energize the solenoid and allow a 3-4 upshift. The control switch indicator light illuminates only when the overdrive switch is turned to the OFF position, or when illuminated by the transmission control module.

    More about «Description and operation»:

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    Front clutch

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    Overrunning clutch

    Planetary gearset

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    Gearshift mechanism

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    Powertrain control module (pcm)

    Electronic governor

    Governor pressure curves

    Overdrive off switch

    Dodge Durango Service Manual / Transmission and Transfer Case / Description and operation / Overdrive off switch

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